Richaed cook



llamas STATES PAT NT OFF CE.

RICHARD COOK, OF SHEFFIELD, ENGLAND.

MACHINE FOR REDUCING COAL, CORN, 84c.

SPECIFICATION forming part of Letters Patent No. 257,661, dated May 9',1882.

Application filed March 8, 1882. (No model.) Iatented in England October18, 1880, in Germany March 14, 1881, in France March 18, 1881, inBelgium March 19, 1881, and in Canada October 19, 1881.

To all whom it may concern 7 Be it known that I, RICHARD 000K, ofSheffield, England, have invented a new and usefulImproved MachineforReducing Goal, Corn, or other Materials, (for which I have obtained apatent in Great Britain, No. 4,244, hearing date October 18, 1880; apatent in France,No. 141,801, dated March 18,1881; a patent in Belgium,No. 54,161, dated March 19,1881; apatent in Germany, No. 16,242, datedMarch 14, 1881, and a patent in Canada on the 19th of October, 1881,) ofwhich the following is a specification, reference being bad to theaccompanying drawings.

Myinvention relates to an improved machine which is chiefly designed forreducing or put verizing coal, but which is also applicable for grindingor reducing corn or other materials.

My said machine is represented in the accompanying drawings, in whichFigure 1 is a longitudinal vertical section and Fig. 2 a transversesection thereof on the line as m, Fig. 1.

A is a strong cylindrical casing, at one end of which there is anupright tube or shaft, 0;, designed to receive the coal or othermaterial and to convey it to the interior of the case A. Thedriving-shaft D passes through this case, and is supported in bearingsD* D* outside the case. The drivers or arms H, carrying the rollers G,are curved in the manner shown,so that the roller on one side of theshaftD revolves in a difi'erent vertical plane to that in which theother roller revolves-that is tosay, the path of one roller is inadvance of that of the other roller. Blades or fans I are placed betweenthe arms H of the driver to move and agitate the material and to createa draft. There is also a similarfan,P,securelyfixedto thcdriving-shaft Dbetween the rollers and the feeding end of the case A. This fan movesthe material (as it enters the case) toward the said rollers. Thismachine maybe made with only one set of rollers or balls, G, butit isdesigned to be furnished with two sets thereof, as shown; or three ormore sets may be .used, placed at intervals along the driving-shaft Dand arranged to rotate in the same manner as above described. Upon thedriving-shaft D, and between each set of balls or rollers, I provide twodouble-bladed fans, P, the first one of which catches the material as itcomes from the rollers next to it and drives the said material towardthe next fan, which in its, turn directs the material to the set ofballs or rollers G, which is in advance thereof, and by these means thematerial has a constant progressive motion imparted to it from thefeeding end of the machine toward the delivery end thereof, and isfinally caused to pass out at the said delivery end by means of anotherdoublebladed fan, P fixed on thcdrivingshaftD close to this end of themachine, which end may be providedwith a sieve or screen, if desired.The material reaches this fan P perfectly reduced,andisdischargedintoachuteorpipe,Q,whence it passes into anysuitablereceptacle placed beneath the same. The aforesaid fans 1 1? P secured tothe driving-shaftD,create powerful currents of air, thus cooling thepulverized or ground substances,which are thus delivered free from beat,this being of very great advantage.

This machine may be provided with steel or other hard rings, placedwithin the case A in such a position that they form circles within whichthe rollers or balls G rotate. The materials to be treated are crushed,ground, or pulverized between the said rollers or balls and the innerface of the said ring.

I arrange the driving-shaft D nearer to the lower portion ofthe case Athan to the upper portion thereof, so that the material is at the upperpart of the machine crushed or bruised and at the lower part thereofpulverized or ground, there being a greater distance between the rollersand the case at the upper part than at the lower part.

I prefer to cast lheballsorrollersG inchills, and when they are to havea spindle rigidly attached to them the hole for the latter may be boredout; or the balls may be cast upon the spindles.

What I claim is- 1. The combination, substantially as described, of acase or cylinder, A, a shaft, D, curved drivers or carriers H, securedto the shaft, and rollers G, arranged respectively on the ends of thedrivers or carriers to rotate in difi'erent vertical planes, essentiallyin the man ner and for the purposes set forth.

2. The combination, with the case or cylinder. A, having feed anddischarge tubes at its ends,

respectively, the horizontal shaft D,rnnd the with the shaft D, curveddrive:s or arms H, traveling grinding-or crushing rollers G, of the therollers or balls G, and the blades or fans double-armed fans P, P, and Parranged re- I, substantially as above desc:'-ibed,nnd for thespectively at the feed and discharge ends of purpose specified. 15 thecase or cylinder and atthe side of the trav- In witness whereof I havehereunto signed cling grinding or crushing rollers for cooling my namein the presence of two subscribing the material being operated on,feeding it witnesses.

along, and discharging the same atone end of RICHARD COOK. thecase orcylinder,substantially as described. \Vitnesses:

3. The combination of the case or cylinder l HY. JNO. ALLEN, A, the tubeor shaft 0, and the chute or pipe Q H.- W. LARKMAN.

